hoagland



A. HOAGLAND, OF JERSEY CITY, JERSEY.

LOCK.

Speccation of Letters Patent No. 19,564, dated March 1858.

To all whom t may concern.'

Be it known that I, ABRAHAM HOAGLAND, of Jersey City, Hudson county, inthe State of New Jersey, have invented a new and useful Improvement inLocks; and I hereby declare that the following is a fullandexactdescription thereof.

To enable others t-o make my invention I proceed to describe itsconstruction and operation, reference being had to the drawings hereuntoannexed and making part of this specification.

Figure 1 the works of the lock shown the cap being removed; Fig. 2 theface of the lock, not showing the knob; Fig. 8 section; Fig. l edgeview; Fig. 5 rear side of the lock with the cap on; Fig. 6 the bolt;Fig. 7 the quadrant tumbler; Fig. 8' diagrams of key, key-hole, &c.

The same letters refer to the same things in all the drafts.

A, the bolt. B, the quadrant tumbler. C, part of the key-hole case. D,the ward. E, the stem. F, India rubber spring. G, shaft of the knob. H,cam of the lock. I, spring to hold the quadrant tumbler irm.

- J small stems to hold the quadrant tumblers when thrown back inunlocking. K, quadrant tumblers in separate parts, used when it isrequired to complicate the lock. L,

'the key. M, the key holes, that on F ig, 2

is the outside one-that on Fig. 5, is on the inside of the lock, oroutside of the door. N, a pin upon the bolt. O, a pin on the bed of thelock.

The lock is intended more especially for a latch lock for doors-thoughit will serve for any of the ordinary purposes of a lock. It is adaptedto a bed room, as it can be locked inside with no key-hole extending tothe outside, by which it could be unlocked.

The bolt is, peculiar in form, having a wide slot in it for theapplication of an india rubber spring, F, (see Figs. l and 6). Thisspring is a piece of vulcanized india rubber tube, strained tightly overa pin, N, upon the bolt and another pin, O, set or cast ing t-hequardrant tumblers, oneor both to the position seen in Fig. l, when theyare held by the steel spring, I.

The bore of the quadrant tumbler, B, (see Fig. 8,) fits uponthe partialcylinder, C, within which is the stem, E, adapted to the key. The ward,D, is fixed to the cap, so that when the cap is put on the ward formspart of the partial cylinder, C. The key being put in the key hole, thebit of it passes down one" side of the ward, D, then, (in locking orunlocking,) across beneath the ward, and then out by the other side ofthe ward. For instance if the key in being put into the key hole, M,Fig. 2, with the bit turned t0 the right it will raise the tumblerfinunlocking) and be drawn out of the key hole with the bit at the top.Then to lock it, the bit of the key is at top when entered and drawn outat the side.

The quadrant tumblers can be made single or of many'parts, (see K, Fig.8,) only one of which could be turned at a time. By varying the openingsin them two or more keys might be required to open the lockthat is,shove the bolt.

The outer lock, when required, can be managed from the inside, by a knobon the cumbler extending through the case of the ook.

I do not claim as original any one of the parts o f this lock, but

/Vhat I claim as my invention and desire to secure by Letters Patent is-The combination of the several parts to form a catch lock with aseparate key hole on each side, having the bolt, A, operated by t-hesegments B, and the spring, F, constructed and arranged substantially asabove described. y

A. HOAGLAND. Witnesses:

OWEN Gr. WARREN, EvAN J ONES.

